Presidential candidate Luis Arce of the MAS party plays the charango, a native instrument, in La Paz, Bolivia October 10, 2020. REUTERS/David Mercado

Candidate Feliciano Mamani of the Bolivian National Action (PAN-BOL) party holds a charango, a native musical instrument, as he arrives for the 2020 Bolivian presidential campaign debate in La Paz, Bolivia October 4, 2020. REUTERS/David Mercado

Ernesto Cavour, musician and creator of instruments, holds a little Charango in La Paz, Bolivia, July 11, 2019. Picture taken July 11, 2019. REUTERS/David Mercado

A man tunes his charango a day before the Tinku a Quechua ritual in San Pedro de Macha, north of Potosi, Bolivia, May 3, 2019. Picture taken May 3, 2019. REUTERS/David Mercado

A indigenous man tunes a native instrument called Charango during the Anata Andina (Andean carnival) in Oruro, Bolivia, February 8, 2018. REUTERS/David Mercado

A man plays a charango, a traditional small five-stringed guitar, next to visitors and cats at Kennedy park in Miraflores district in Lima, May 13, 2015. REUTERS/Mariana Bazo

A man plays a charango, a traditional small five-stringed guitar, next to a boy and cats at Kennedy park in Miraflores district in Lima, May 13, 2015. REUTERS/Mariana Bazo

Bolivian luthier Juan Acha is seen at his "Charango" workshop in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha holds up a piece of dried wood during the manufacturing process of a "Charango" in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha tunes a "Charango" next to his son Miguel in La Paz June 14, 2013. Acha is one of most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha works on a piece of wood during the manufacturing process of a "Charango" in La Paz June 14, 2013. Acha is one of most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

"Charangos" are seen in the atelier of Bolivian luthier Juan Acha in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha is seen in his "Charangos" atelier in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

A view of "Charangos" during the manufacturing process is seen in Bolivian luthier Juan Acha's atelier in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha looks at the fretboard of a "Charango" made in his workshop in La Paz June 14, 2013. Acha is one of most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

Bolivian luthier Juan Acha tests a "Charango" made in his workshop in La Paz June 14, 2013. Acha is one of the most recognized manufacturers of the "Charango", a small stringed instrument which originated in colonial times in the Andean region of Potosi and developed by Bolivian artisans. REUTERS/David Mercado (BOLIVIA - Tags: SOCIETY)

U.S. Secretary of State Condoleezza Rice looks at a charango given to her by Bolivia's President Evo Morales (R) in Valparaiso, Chile March, 11, 2006. Rice and Morales met in Chile while attending new Chilean President Michelle Bachelet's inauguration. REUTERS/Maglio Perez

Chile's President-elect Michelle Bachelet (L) pretends to play a charango given to her as a present by Bolivia's President Evo Morales (R) in Santiago, March 10, 2006. Bachelet will take office as Chile's first female president on Saturday. REUTERS/Max Montecinos

Bolivia's President Evo Morales (R) gives a charango as a present to Chile's President-elect Michelle Bachelet, in Santiago March 10, 2006. Bachelet will take office as Chile's first female president on Saturday. REUTERS/Max Montecinos

Bolivia's President Evo Morales (R) gives a charango as a present to Chile's President-elect Michelle Bachelet in Santiago March 10, 2006. Bachelet will take office as Chile's first female president on Saturday. REUTERS/Ivan Alvarado

Bolivia's President Evo Morales (R) gives a charango as a present to Chile's President-elect Michelle Bachelet (front L) in Santiago March 10, 2006. Bachelet will take office as Chile's first female president on Saturday. REUTERS/Ivan Alvarado